Miami (CNN) - Pieces of a defunct satellite that plummeted to Earth have settled, NASA said Saturday morning.

The space agency said the Upper Atmosphere Research Satellite "is down," according to the space agency's Twitter page. NASA said debris fell to Earth between 11:23 p.m. ET Friday and 1:09 a.m. ET Saturday, but it was not immediately clear where the pieces may have landed.
NASA said the satellite pierced through the atmosphere over the Pacific Ocean, but the exact time and location were not known.

About two dozen pieces of the satellite were expected to survive the crash through the Earth's atmosphere.

Late Friday night, NASA predicted satellite parts would pass "over Canada and Africa, as well as vast areas of the Pacific, Atlantic and Indian oceans."

"The risk to public safety is very remote," NASA said. The 26 pieces expected to survive the descent - made of stainless steel, titanium and beryllium that won't burn - ranged from about 10 pounds to hundreds of pounds, according to NASA.

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